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ST890 Fiches technique(PDF) 3 Page - STMicroelectronics

No de pièce ST890
Description  1.2A CURRENT LIMITED HIGH SIDE WITH THERMAL SHUTDOWN
Download  7 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST890 Fiches technique(HTML) 3 Page - STMicroelectronics

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ST890
3/7
ELECTRICAL CHARACTERISTICS (VIN=3V, TA =TMIN to TMAX, unless otherwise specified. Typical
values are at TA =25 °C)
TIMINGL CHARACTERISTICS (VIN=3V, TA =TMIN to TMAX, unless otherwise specified. Typical values
are at TA =25 °C)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VI
Operating Voltage
ID =1mA
2.7
5.5
V
ICC
ON Quiescent Supply
Current
VI =5V,
ON=GND
IO =0
13
25
µA
I(CCOFF) OFF Quiescent Supply
Current
ON=IN
VI =VOUT =5.5V
1
µA
ON=IN
VI = 5.5V
VO =0
5
VULO
Undervoltage Lockout
Rising Edge
2.0
2.4
2.6
V
VHYST Undervoltage Lockout
Hysteresys
100
mV
RON
ON Resistance
VI = 4.5V
75
120
m
VI =3V
90
130
VSET
Reference Voltage to Turns
The Switch OFF
IO =100mA VSET rised until VI -VO > 0.8V
1.178
1.24
1.302
V
IMAX
Maximum Output Current
Limit
1.2
A
ISC
Short Circuit Current Limit
1.2 ILIM
A
IO/ISET IO to ISET Current Ratio
IO =500mA
VO > 1.6V
970
1110
1300
VIL
ON Input Low Level Voltage VI = 2.7 to 5.5V
0.8
V
VIH
ON Input High Level
Voltage
VI = 2.7 to 3.6V
2.0
V
VI = 4.5 to 5.5V
2.4
II
ON Input Leakage Current
VI = 5.5V
1
µA
ISET
ISET Bias Current
VSET = 1.24V IO =0A
VI =VO
0.5
3
µA
VOL
FAULT Output Low Voltage
ISINK =1mA VSET = 1.4V
0.15
V
IOH
FAULT Output High Voltage VFAULT =5.5V
VSET =1V
1
µA
TPROT Thermal Protection
130
°C
THYST
Thermal Hysteresys
15
°C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
tRESP
Slow Current Loop
Response Time
20% Current Overdrive, VCC =5V
5
µs
Fast Current Loop
Response Time
2
µs
tON
Turn ON Time
VI =5V,
IO =500mA
25
50
µs
VI =3V,
IO =500mA
50
tOFF
Turn OFF Time
VI =5V
1
2
10
µs


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